CN114787438A - 片材 - Google Patents
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- Publication number
- CN114787438A CN114787438A CN202080069470.7A CN202080069470A CN114787438A CN 114787438 A CN114787438 A CN 114787438A CN 202080069470 A CN202080069470 A CN 202080069470A CN 114787438 A CN114787438 A CN 114787438A
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- China
- Prior art keywords
- fibers
- arrangement
- splittable
- sheet
- reinforcement structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/024—Woven fabric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/06—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/08—Interconnection of layers by mechanical means
- B32B7/09—Interconnection of layers by mechanical means by stitching, needling or sewing
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- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
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- D04H1/4334—Polyamides
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- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
- D04H1/43825—Composite fibres
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
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- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
- D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
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- D—TEXTILES; PAPER
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- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
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- D04H1/498—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
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- D—TEXTILES; PAPER
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Abstract
一种形成片材的方法。所述方法包括使纤维主体和增强结构的布置物前进,其中增强结构包括可分裂纤维。所述方法还包括使布置物经受连续水力缠结步骤,其中在每个这样的水力缠结步骤中,将布置物暴露于在布置物的表面上的高压液体射流。使布置物经受连续水力缠结步骤导致纤维主体的纤维彼此缠结并且导致纤维主体的纤维与增强结构之间形成机械结合。机械结合由至少以下引起:纤维主体的一些纤维被高压液体射流推入增强结构的间隙中;增强结构的至少一些可分裂纤维分裂以形成分裂纤维,分裂纤维减小间隙内的空间,使得增强结构约束已被推入间隙中的纤维主体的纤维;纤维主体的至少一些纤维与增强结构的至少一些分裂纤维和至少一些可分裂纤维缠结。
Description
技术领域
本公开文本的实例涉及形成片材的方法、随后形成的片材和形成片材的布置物。
背景技术
已知使用水力缠结(hydroentanglement)通过使包括纤维主体的布置物经受高压液体射流以通过缠结将纤维互锁在一起来形成片材。在一些情况下,纤维主体可以在水力缠结过程中机械地结合至增强结构,以提供具有改善的机械特性(诸如更大的拉伸强度)的片材。
需要通过增加纤维主体与增强结构之间的机械结合的强度来提供更耐用的片材。
发明内容
根据本公开文本的各种但不一定是全部的实例,提供了形成片材的方法,所述方法包括:
使包括纤维主体和增强结构的布置物前进,其中所述增强结构包括可分裂纤维;以及
使所述布置物经受连续水力缠结步骤,其中在每个这样的水力缠结步骤中,将所述布置物暴露于在布置物的表面上的高压液体射流,其中使所述布置物经受连续水力缠结步骤导致纤维主体的纤维彼此缠结并且导致纤维主体的纤维与增强结构之间形成机械结合,其中所述机械结合由至少以下引起:
所述纤维主体的一些纤维被高压液体射流推入所述增强结构的间隙中;
所述增强结构的至少一些可分裂纤维分裂以形成分裂纤维,所述分裂纤维减小所述间隙内的空间,使得所述增强结构约束已被推入间隙中的纤维主体的纤维;以及
所述纤维主体的至少一些纤维与增强结构的至少一些分裂纤维和至少一些可分裂纤维缠结。
可能地,所述方法包括使布置物经受连续水力缠结步骤,其中在每个这样的水力缠结步骤中,将所述布置物暴露于在布置物的一个面的表面上或在所述布置物的每个相应面的表面上的高压液体射流。
可能地,所述方法包括在连续水力缠结步骤之后,向所述布置物的面施用涂层。所述方法可以包括向布置物的两个面和/或任一面施用涂层。所述涂层可以是聚合物涂层。
所述纤维主体可以包括合成纤维、天然纤维或天然来源纤维,或者可以包括合成纤维、天然纤维和/或天然来源纤维的共混物。所述纤维主体可以包括皮革纤维,并且可以主要包括皮革纤维。所述纤维主体可以包括皮革纤维和非皮革纤维。所述非皮革纤维可以是天然的或合成的。
所述纤维主体可以包括可分裂纤维。所述纤维主体可以包括皮革纤维和可分裂纤维。所述可分裂纤维可以是非皮革纤维。
可能地,所述布置物仅在增强结构的一个面上包括纤维主体。可替代地,所述布置物可以包括在增强结构的每个面上的纤维主体。
可能地,所述增强结构包括由织造织物限定的结构,其中所述织造织物包括可分裂纤维。可替代地,所述增强结构可以包括由非织造织物限定的结构,其中所述非织造织物包括可分裂纤维。可能地,所述增强结构包括由织造织物和非织造织物的组合限定的结构,其中所述织造织物和/或所述非织造织物包括可分裂纤维。非织造织物定义为除织造织物之外的任何纺织结构,诸如针织织物或针刺结构。
可能地,所述增强结构的相应可分裂纤维包括至少两种不同的纤维,所述至少两种不同的纤维布置在所述可分裂纤维的截面的不同区段中。所述至少两种不同的纤维可以包括聚酯纤维和聚酰胺纤维。可能地,所述至少两种不同的纤维包括微纤维。
可能地,所述增强结构的相应可分裂纤维包括设置在树脂中的多个纤维。所述多个纤维可以包括多个不同的纤维。所述多个纤维可以包括聚酰胺纤维,并且所述树脂可以包括聚酯树脂。可能地,所述多个纤维包括微纤维。
所述布置物可以包括多个不同的相应纤维主体和/或多个不同的相应增强结构,条件是至少一个增强结构包括可分裂纤维。
根据本公开文本的各种但不一定全部的实施例,提供了由以上任何段落的方法制造的片材。
可能地,所述片材基本上不存在纤维的任何胶粘性结合。可能地,所述片材不包括所述纤维的胶粘性结合。
根据本公开文本的各种但不一定全部的实施例,提供了由以上任何段落的方法由布置物制造的片材,所述布置物包括:
纤维主体;以及
增强结构,其中所述增强结构包括可分裂纤维。
根据本公开文本的各种但不一定全部的实施例,提供了一种布置物,所述布置物包括:
纤维主体;以及
增强结构,其中所述增强结构包括可分裂纤维。
所述纤维主体可以包括合成纤维、天然纤维或天然来源纤维,或者可以包括合成纤维、天然纤维和/或天然来源纤维的共混物。所述纤维主体可以包括皮革纤维,并且可以主要包括皮革纤维。所述纤维主体可以包括皮革纤维和非皮革纤维。所述非皮革纤维可以是天然的、天然来源的或合成的。
所述纤维主体可以包括可分裂纤维。所述纤维主体可以包括皮革纤维和可分裂纤维。所述可分裂纤维可以是非皮革纤维。
可能地,所述布置物仅在所述增强结构的一个面上包括纤维主体。可替代地,所述布置物可以包括在增强结构的每个面上的纤维主体。
可能地,所述增强结构包括由织造织物限定的结构,其中所述织造织物包括可分裂纤维。可替代地,所述增强结构可以包括由非织造织物限定的结构,其中所述非织造织物包括可分裂纤维。可能地,所述增强结构包括由织造织物和非织造织物的组合限定的结构,其中所述织造织物和/或所述非织造织物包括可分裂纤维。非织造织物定义为除织造织物之外的任何纺织结构,诸如针织织物或针刺结构。
可能地,所述增强结构的相应可分裂纤维包括至少两种不同的纤维,所述至少两种不同的纤维布置在所述可分裂纤维的截面的不同区段中。所述至少两种不同的纤维可以包括聚酯纤维和聚酰胺纤维。可能地,所述至少两种不同的纤维包括微纤维。
可能地,所述增强结构的相应可分裂纤维包括设置在树脂中的多个纤维。所述多个纤维可以包括多个不同的纤维。所述多个纤维可以包括聚酰胺纤维,并且所述树脂可以包括聚酯树脂。可能地,所述多个纤维包括微纤维。
所述布置物可以包括多个不同的相应纤维主体和/或多个不同的相应增强结构,条件是至少一个增强结构包括可分裂纤维。
根据本公开文本的各种但不一定全部的实施例,提供了服装、鞋类、配件或家具装饰品,其包括根据以上段落的片材。
根据本公开文本的各种但不一定全部的实施例,提供了通过水力缠结由网形成的复合材料,所述网包括:
纤维主体;以及
增强结构,其中所述增强结构包括可分裂纤维。所述复合材料是片材。所述网另外称为布置物。
根据本公开文本的各种但不一定全部的实施例,提供了一种网,所述网包括:
纤维主体;以及
增强结构,其中所述增强结构包括可分裂纤维。所述网另外称为布置物。
根据本公开文本的各种但不一定全部的实施例,提供了复合材料,所述复合材料包括:
通过缠结彼此互锁的纤维主体;以及
增强结构,所述增强结构包括由可分裂纤维形成的分裂纤维,其中主体的至少一些纤维机械地结合至增强结构。所述复合材料是片材。
根据本公开文本的各种但不一定全部的实施例,提供了一种形成复合材料的方法,所述方法包括:
形成网,所述网包括纤维主体和增强结构,其中所述增强结构包括可分裂纤维;
使所述网经受水力缠结步骤以形成复合材料,其中将所述网暴露于在网表面上的高压液体射流。所述复合材料是片材。所述网另外称为布置物。
根据本公开文本的各种但不一定全部的实施例,可以提供如所附权利要求所要求保护的实施例。
附图说明
为了更好地理解可用于理解具体实施方式的各种实施例,现在将仅通过举例来参考附图,其中:
图1示出了不根据本公开文本实施例的片材的显微镜图像(x25);
图2示出了根据本公开文本实施例的片材的显微镜图像(x25);
图3示出了包括涂层的不根据本公开文本实施例的片材的截面显微镜图像(x32);以及
图4示出了包括涂层的根据本公开文本实施例的片材的截面显微镜图像(x32)。
具体实施方式
在本公开文本的实施例中,提供了形成片材的方法。此外,本公开文本的实施例还提供了随后形成的片材以及形成片材的布置物。
所述方法包括使纤维主体和增强结构的布置物前进,其中所述增强结构包括可分裂纤维。
所述方法进一步包括使布置物经受连续水力缠结步骤。
在每个这样的水力缠结步骤中,使布置物暴露于在布置物表面上的高压液体射流。在一些实施例中,液体是水。
使布置物经受连续水力缠结步骤导致纤维主体的纤维彼此缠结。因此,所述主体的纤维通过缠结而彼此互锁。
使布置物经受连续水力缠结步骤还导致纤维主体的纤维与增强结构之间形成机械结合。
所述机械结合由至少以下引起:
a)所述纤维主体的一些纤维被所述高压液体射流推入所述增强结构的间隙中;
b)所述增强结构的至少一些可分裂纤维分裂以形成分裂纤维,所述分裂纤维减小所述间隙内的空间,使得所述增强结构约束已被推入所述间隙中的纤维主体的纤维;以及
c)所述纤维主体的至少一些纤维与所述增强结构的至少一些分裂纤维和至少一些可分裂纤维缠结。
分裂纤维可以是微纤维。约束是指增强结构压缩、挤压或拉紧已经被推入间隙中的纤维主体的纤维。
所述布置物可以包括多个不同的相应纤维主体和/或多个不同的相应增强结构,条件是至少一个增强结构包括可分裂纤维。
在这样的布置物中,每个相应的纤维主体可以具有不同的组成,例如,可以包括不同的纤维。在这样的布置物中,每个增强结构可以具有不同的结构和/或组成,例如,可以包括由织造织物和/或非织造织物限定的结构和/或可以包括不同的纤维。在这样的布置物中,不是所有增强结构都需要包括可分裂纤维。
片材是复合材料,即,复合片材。包括在布置物中的纤维主体是网。应当理解,纤维主体的加工中强度远低于由根据本公开文本实施例的方法产生的片材的强度。
布置物可以通过常规手段形成,例如,通过将纤维铺设在支撑物上以提供纤维主体,随后将增强结构铺设在纤维主体上。
纤维主体可以是非织造纤维网,并且可以是气流成网、湿法成网、针刺网或梳理网。
使布置物在设备中经受连续水力缠结步骤。在一些实施例中,在设备中,布置物被支撑在多孔传送带上,所述多孔传送带可以是在其上形成布置物的支撑物,并且所述布置物前进通过一个或多个处理站。在其他实施例中,在设备中,布置物被支撑在多孔鼓(porous drum)上,所述多孔鼓可以是在其上形成布置物的支撑物,并且所述布置物前进通过一个或多个处理站。所述一个或多个处理站包括液体出口,用于使布置物经受这种液体的高压射流。
在一些实施例中,所述方法包括使所述布置物经受连续水力缠结步骤,其中在每个这样的水力缠结步骤中,将所述布置物暴露于在所述布置物的一个面的表面上的高压液体射流。在其他实施例中,所述方法包括使所述布置物经受连续水力缠结步骤,其中在每个这样的水力缠结步骤中,将所述布置物暴露于在每个相应面的表面上的高压液体射流。在布置物的一个或每个面上的每个连续水力缠结步骤可以在设备中的不同处理站进行。在这样的实施例中,传送带或鼓被布置为支撑布置物并且使布置物前进通过每个相应的处理站。
所述纤维主体可以包括合成纤维、天然纤维或天然来源纤维。示例性天然纤维的非穷尽列表包括:羊毛、棉花和亚麻。示例性天然来源纤维的非穷尽列表包括皮革纤维、大豆纤维、粘胶纤维和竹纤维。示例性合成纤维的非穷尽列表包括:尼龙、聚酯、丙烯酸。合成纤维可以是双复合纤维。在一些实施例中,纤维主体可以包括合成纤维和天然纤维的组合。
纤维主体还可以包括可分裂纤维,所述可分裂纤维可以是天然来源的或合成的。在这样的实施例中,使布置物经受连续水力缠结步骤还将至少一些可分裂纤维分裂并且使它们缠结。
在实施例中,诸如下面描述的说明实施例,其中纤维主体包括皮革纤维,皮革纤维可以来源于废皮革。由包括纤维主体的布置物形成的片材(其中纤维主体包括皮革纤维)可以是工程化皮革产品或用于形成工程化皮革产品。
在由包括相对短且细的纤维(诸如来源于废皮革的皮革纤维)的主体的布置物形成的常规片材中,主体的纤维与增强结构之间的机械结合的强度可能不足以用于片材的特定用途,例如在服装、鞋类、配件或家具装饰品应用中。
仅出于说明的目的,在纺织品回收设备中由废皮革的离解产生的纤维长度的范围为从偶然的纤维的小于1mm至多20mm。在离解前天然皮革的纤维结构由紧密交织的胶原纤维束组成,所述胶原纤维束进而由甚至更细的原纤维组成,所述原纤维中的许多在机械作用过程中变成分离的。这导致纤维直径范围为从束的约100微米到对于单独原纤维的低于1微米的非常细纤维。
不受理论的束缚,这样的相对短且细的纤维可能不足以锚定到增强结构并且因此容易从其上解离。
如上所述,在本公开文本的实施例中,增强结构包括可分裂纤维。
在一些实施例中,增强结构的可分裂纤维包括至少两种不同的纤维,所述至少两种不同的纤维布置在所述可分裂纤维的截面的不同区段中。例如,所述至少两种不同的纤维可以包括聚酯纤维和聚酰胺纤维,其可以是微纤维。
可替代地,在其他实施例中,增强结构的相应可分裂纤维包括设置在树脂中的多个纤维,即海中岛。所述多个纤维可以包括多个不同的纤维,其可以是微纤维。可能地,所述多个纤维包括聚酰胺纤维,并且所述树脂包括聚酯树脂。
增强结构可以包括由包括可分裂纤维的织造织物或包括可分裂纤维的非织造织物限定的结构。可替代地,增强结构可以包括由织造织物和非织造织物的组合限定的结构,其中所述织造织物和/或所述非织造织物包括可分裂纤维。不管所述结构是由织造织物、非织造织物还是它们的组合限定的,所述结构都包括可分裂纤维之间的间隙。因此,增强结构中存在间隙。如下文更详细描述的,在织造织物中,间隙至少由织造织物的规则网布置中的开口限定。在非织造织物中,间隙至少由在非织造织物中无规或不规则布置的离散的可分裂纤维或离散的可分裂纤维束之间的空隙限定。
织造织物和非织造织物由可分裂纤维形成。因此,所述方法可以包括由可分裂纤维形成织造织物和/或非织造织物。
在如上所述的连续水力缠结步骤的过程中,纤维主体的至少一些纤维被高压液体射流推入增强结构的间隙中。此外,至少一些可分裂纤维分裂以形成分裂纤维。因此并且不受理论的束缚,随着可分裂纤维分裂成分裂纤维,增强结构中的间隙尺寸减小,因此增强结构约束并且更紧密地保持主体的纤维,所述主体的纤维延伸到增强结构中的间隙中和/或穿过其中。主体中的纤维还与增强结构中的至少一些分裂纤维和至少一些可分裂纤维缠结。因此,在所得片材中,所述主体的纤维比常规片材更紧密地机械保持至增强结构,如下表1中的剥离强度测试数据所展示。
表1
| 片材 | 剥离强度测试(N/cm) |
| 对比例 | 13.6N/cm |
| 实施例1 | 15.0N/cm |
| 实施例2 | 27.5N/cm |
在上表1中,对比例是由包括含有皮革纤维的240GSM纤维主体和含有85GSM不可分裂纤维织造织物(例如,含有不可分裂聚酯纤维)的增强结构的布置物形成的片材。
实施例1是由包括含有皮革纤维的240GSM纤维主体和含有85GSM可分裂纤维织造织物的增强结构的布置物形成的片材。
实施例2是由包括含有皮革纤维的140GSM纤维主体和含有200GSM可分裂纤维非织造织物的增强结构的布置物形成的片材。
在以上实施例1和实施例2中,增强结构的可分裂纤维包括聚酯纤维和聚酰胺纤维,所述聚酯纤维和聚酰胺纤维布置物在可分裂纤维的截面的不同区段中。
在每种相应的情况下,所采用的水力缠结方法是相同的,其中使布置物经受在布置物的每个面上的连续水力缠结步骤。选择液体射流的压力以及还有暴露于液体射流的时间,使得液体渗透足够深,以驱动主体的纤维进入增强结构,并且还使增强结构的至少一些可分裂纤维分裂。
因此,由所述布置物形成的片材(其中布置物包括增强结构,所述增强结构具有由织造织物限定的结构,其中所述织造织物包括可分裂纤维)的剥离强度比其中不包括可分裂纤维的织造织物的相应对比例大约10%。如果增强结构包括含有可分裂纤维的非织造织物而不是含有可分裂纤维的织造织物,则发现甚至更大的剥离强度增加(约102%)。此外,在这样的实施例中,与其中增强结构包括织造织物的片材相比,非织造织物赋予形成的片材更大的弹性。
在上表1中,剥离强度是将缠结纤维主体从增强结构上拉开所需的力的量度。
实施例1和实施例2以及对比例的片材由仅在增强结构的一个面上包括纤维主体的布置物形成。如上所述,这样的布置物可以通过常规手段形成,例如,通过将纤维铺设在支撑物上以提供纤维主体,随后将增强结构铺设在纤维主体上。因此,在连续水力缠结步骤之后随后形成的片材中,增强结构充当增强背衬。在这样的实施例中,增强背衬可以限定片材的顶面或底面。
在其他实施例中,布置物可以包括在增强结构的每个面上的纤维主体,即夹层型结构。在这样的实施例中,布置物可以通过常规手段形成,例如,通过将纤维铺设在支撑物上以提供纤维主体,随后将增强结构铺设在纤维主体上,并且然后随后将另外的纤维铺设在增强结构上以提供第二纤维主体。因此,在随后形成的片材中,增强结构充当增强芯。
在其他实施例中,布置物和随后形成的片材可以包括不同数量的增强结构和纤维主体,如上所述。
图1和图2分别展示了对比例和实施例1的片材的面的显微镜(x25)图像。在显微镜图像中,增强结构10覆盖纤维主体。在每个图中,增强结构10的织造织物的网结构12(其由交错线14(即,呈直角的纱线)形成)是可见的。多个间隙(即,开口16)限定在网12中,并且通过开口16可以看到皮革纤维18,其中一些延伸到开口16中和/或穿过其中。
从图1和图2的比较清楚地看出,平均而言,图2的增强结构10中的间隙16(即,网中的开口)比图1的增强结构10中的间隙16(即,网中的开口)更小且更不明确。如上所讨论,在连续水力缠结步骤的过程中,至少一些可分裂纤维分裂成分裂纤维,这导致间隙(即,开口)尺寸减小。不受理论束缚,据信随着可分裂纤维分裂,交错线展开以占据更多空间,从而在一定程度上封闭间隙(即,开口16)并且从而减小其平均尺寸。因此,间隙内的空间减小,并且因此,增强结构约束已被推入间隙中的纤维主体的纤维。
类似地(但未展示),出于以上讨论的相同原因,由于可分裂纤维在水力缠结过程中分裂,实施例2的非织造织物中的离散的可分裂纤维或离散的可分裂纤维束之间限定的间隙(即,空隙)尺寸减小。
因此,主体的纤维在水力缠结过程中被加压水射流推入增强结构中的间隙中,并且由于间隙尺寸减小而比对比例更紧密地保持在增强结构中。主体的纤维还与增强结构的至少一些分裂纤维和至少一些可分裂纤维缠结。此外,增强结构中另外较小的间隙可以通过增强结构中可分裂纤维的分裂而形成。因此,主体的纤维也可以在水力缠结过程中被加压水射流推入增强结构中的这些较小间隙中,并且通过增强结构的缠结和/或约束而变得锚定在其中。
因此,在所得片材中,主体的纤维比常规材料更紧密地机械保持至增强结构。这反映在以上剥离强度数据中。
在水力缠结之后的一些实施例(即,在水力缠结的下游)中,布置物可以在施用涂层(如下所述)之前经受常规处理,诸如浸渍以软化、硬化或改善片材的处理。在一些情况下,此过程可能轻微地结合纤维。然而,这样的结合对总体强度贡献很小,并且产品完整性主要取决于缠结。
除了上述可能的浸渍精整处理,在结构上结合纤维不需要粘合剂。因此,片材可以基本上不存在纤维的任何胶粘性结合,纤维的机械互锁是获得和维持结构完整性的唯一或主要手段。
在其他实施例中,在水力缠结之后,布置物在施用涂层之前不经受常规处理,诸如浸渍。因此,在这样的实施例中,片材不包括纤维的胶粘性结合。
在一些实施例中,片材包括涂层,例如聚合物涂层。因此,所述方法可以包括在连续水力缠结步骤之后向布置物施用这样的涂层。
图3和图4分别展示了由对比例和实施例1形成的包括聚合物涂层22的片材的截面放大图(x32)。
在每个图中,由增强结构10的织造织物的交错线14形成的规则网12是可见的。缠结皮革纤维18是可见的,延伸到间隙(即,开口16)中和/或穿过其中。值得注意地,与图3的对比例相比,图4中展示的片材中聚合物涂层22下面的间隙20更少且更小。不受理论的束缚,这是因为由分裂纤维和可分裂纤维保持的缠结皮革纤维18填充了开口,因此产生光滑表面,并且增强结构的线14中的可分裂纤维在水力缠结过程中已经在一定程度上分裂,以提供可用于结合到聚合物涂层22的更大表面积,即提供更多的接触点或锚固点。因此,与聚合物涂层22形成更好的结合,这反映在下表2中提供的剥离强度数据中。
表2提供了关于将聚合物涂层从相应片材的剩余部分上拉开的剥离强度测试数据。
表2
| 片材 | 剥离强度测试(N/cm) |
| 对比例 | 8.34N/cm |
| 实施例1 | 12.38N/cm |
| 实施例2 | 29.1N/cm |
在对比例以及实施例1和实施例2中,涂层已作为层施用在增强结构的顶上。
可以通过常规程序处理根据本公开文本实施例的片材(涂覆的或未涂覆的),以产生适用于例如服装、鞋类、配件和家具装饰品应用的材料,例如皮革样材料。典型的程序包括着色、用软化油处理、干燥、磨光和表面精整。
在根据本公开文本实施例的片材中,纤维主体与增强结构之间的机械结合强度的增加以及还有与涂层(如果存在的话)更好的结合导致这样的材料(诸如用于服装、鞋类、配件和家具装饰品应用的皮革样材料)更耐用。
因此,描述了一种形成片材的方法、一种随后形成的片材和一种形成片材的布置物,具有如上详述的许多优点。此外,在本公开文本的实施例中,片材不包括或基本上不包括纤维的胶粘性结合,例如,纤维主体的纤维与增强结构或纤维主体的纤维的胶粘性结合。机械互锁是获得和维持片材完整性的唯一或主要手段。这不仅对环境更好,而且导致比为获得和维持材料完整性而使用粘合剂形成的材料更柔软、更有延展性的片材。
尽管在前面的段落中已经参考各种实施例描述了本发明的实施方案,但是应当理解,可以在不脱离如所要求保护的本发明范围的情况下对给出的实施例进行修改。例如,可以选择织造织物中的纱线尺寸以提供不同的特性,例如以增加或减少厚度和密度。此外,可以提供由织造织物和非织造织物两者的组合形成的增强结构,并且每种相应织物可以包括不同类型的可分裂纤维,并且可能还包括构成增强结构的一部分的不可分裂纤维,以调节片材的特性。
例如,可以在布置物的至少一个面的水力缠结之前向该面施用组织层。
前面描述中所述的特征可以在除了明确描述的组合以外的组合中使用。
尽管已经参考某些特征描述了功能,但这些功能可以由无论是否描述过的其他特征来执行。
尽管已经参考某些实施方案描述了特征,但这些特征也可以存在于无论是否描述过的其他实施方案中。
术语“包括”在本文件中以包含性而非排他性的含义使用。也就是说,对于X包括Y的任何提及表明X可以仅包括一个Y或者可以包括多于一个Y。如果旨在以排他性的含义使用“包括”,那么将在上下文中通过提及“包括仅一个……”或通过使用“组成”来使其清楚。
在此简要描述中,参考了各种实施例。与实施例相关的特征或功能的描述表明这些特征或功能存在于该实施例中。在上下文中术语“实施例”或“例如”或“可以”的使用无论是否明确声明都表示,这样的特征或功能存在于至少所描述的实施例(无论是否举例描述)中,并且它们可以但不一定存在于一些或所有其他实施例中。因此,“实施例”、“例如”或“可以”是指一类实施例中的特定示例。所述示例的特性可以是仅该示例的特性或所述类的特性,或者是所述类的子类的特性,所述子类包括所述类中的示例中的一些而非全部。因此,隐含地公开了关于一个实施例而不是关于另一个实施例而描述的特征可以在可能的情况下用在该另一个实施例中,但不一定必须用在该另一个实施例中。
虽然在前述说明书中尽力将注意力吸引到被认为特别重要的本发明的那些特征上,但应当理解,申请人要求保护上文提到的和/或附图中示出的任何可专利的特征或特征组合,无论是否对其进行特别强调。
Claims (19)
1.一种形成片材的方法,所述方法包括:
使包括纤维主体和增强结构的布置物前进,其中所述增强结构包括可分裂纤维;以及
使所述布置物经受连续水力缠结步骤,其中在每个这样的水力缠结步骤中,将布置物暴露于在布置物的表面上的高压液体射流,其中使所述布置物经受连续水力缠结步骤导致纤维主体的纤维彼此缠结并且导致纤维主体的纤维与增强结构之间形成机械结合,其中所述机械结合由至少以下引起:
所述纤维主体的一些纤维被高压液体射流推入增强结构的间隙中;
所述增强结构的至少一些可分裂纤维分裂以形成分裂纤维,所述分裂纤维减小间隙内的空间,使得所述增强结构约束已被推入间隙中的纤维主体的纤维;以及
所述纤维主体的至少一些纤维与所述增强结构的至少一些分裂纤维和至少一些可分裂纤维缠结。
2.根据前述权利要求中任一项所述的方法,其中所述方法包括在所述连续水力缠结步骤之后,向所述布置物的面施用涂层。
3.根据权利要求2所述的方法,其中所述涂层是聚合物涂层。
4.根据前述权利要求中任一项所述的方法,其中所述纤维主体包括皮革纤维。
5.根据前述权利要求中任一项所述的方法,其中所述纤维主体主要包括皮革纤维。
6.根据前述权利要求中任一项所述的方法,其中所述纤维主体包括皮革纤维和可分裂纤维。
7.根据前述权利要求中任一项所述的方法,其中所述布置物仅在所述增强结构的一个面上包括纤维主体。
8.根据权利要求1至6中任一项所述的方法,其中所述布置物在所述增强结构的每个面上包括纤维主体。
9.根据前述权利要求中任一项所述的方法,其中所述增强结构包括由织造织物限定的结构,其中所述织造织物包括可分裂纤维。
10.根据权利要求1至8中任一项所述的方法,其中所述增强结构包括由非织造织物限定的结构,其中所述非织造织物包括可分裂纤维。
11.根据权利要求1至8中任一项所述的方法,其中所述增强结构包括由织造织物和非织造织物的组合限定的结构,其中所述织造织物和/或所述非织造织物包括可分裂纤维。
12.根据前述权利要求中任一项所述的方法,其中所述增强结构的相应可分裂纤维包括至少两种不同的纤维,所述至少两种不同的纤维布置在所述可分裂纤维的截面的不同区段中。
13.根据权利要求12所述的方法,其中所述至少两种不同的纤维包括聚酯纤维和聚酰胺纤维。
14.根据权利要求1至11中任一项所述的方法,其中所述增强结构的相应可分裂纤维包括设置在树脂中的多个纤维。
15.根据权利要求14所述的方法,其中所述多个纤维包括聚酰胺纤维,并且所述树脂包括聚酯树脂。
16.通过根据权利要求1至15中任一项所述的方法制造的片材。
17.根据权利要求16所述的片材,其中所述片材基本上不存在所述纤维的任何胶粘性结合。
18.根据权利要求16所述的片材,其中所述片材不包括所述纤维的胶粘性结合。
19.服装、鞋类、配件或家具装饰品,所述服装、鞋类、配件或家具装饰品包括根据权利要求16至18中任一项所述的片材。
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| GB (1) | GB2593414B (zh) |
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| WO (1) | WO2021038233A1 (zh) |
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| CN1539036A (zh) * | 2000-11-10 | 2004-10-20 | 金伯利-克拉克环球有限公司 | 包含回用合成纤维材料的水刺缠结非织造复合结构 |
| WO2004092472A2 (en) * | 2003-04-17 | 2004-10-28 | Orlandi, S.P.A. | Non-woven based on exploded or splittable multicomponent fibers |
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- 2020-08-28 PL PL20765336.1T patent/PL4018032T3/pl unknown
- 2020-08-28 JP JP2022513624A patent/JP7743395B2/ja active Active
- 2020-08-28 ES ES20765336T patent/ES2975088T3/es active Active
- 2020-08-28 US US17/638,727 patent/US20220275547A1/en not_active Abandoned
- 2020-08-28 WO PCT/GB2020/052059 patent/WO2021038233A1/en not_active Ceased
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Also Published As
| Publication number | Publication date |
|---|---|
| GB2593414A (en) | 2021-09-29 |
| EP4018032C0 (en) | 2024-02-28 |
| EP4018032B1 (en) | 2024-02-28 |
| ES2975088T3 (es) | 2024-07-03 |
| GB201912516D0 (en) | 2019-10-16 |
| PL4018032T3 (pl) | 2024-08-05 |
| JP7743395B2 (ja) | 2025-09-24 |
| US20220275547A1 (en) | 2022-09-01 |
| EP4018032A1 (en) | 2022-06-29 |
| WO2021038233A1 (en) | 2021-03-04 |
| GB2593414B (en) | 2023-06-07 |
| JP2022547446A (ja) | 2022-11-14 |
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